Examples of org.apache.mina.core.write.WriteRequestQueue

org.apache.mina.core.write.WriteRequestQueue
Stores {@link WriteRequest}s which are queued to an {@link IoSession}. @author The Apache MINA Project (dev@mina.apache.org) @version $Rev: 671827 $, $Date: 2008-06-26 10:49:48 +0200 (Thu, 26 Jun 2008) $

                }
            } else {
                s.increaseScheduledWriteMessages();
            }


            WriteRequestQueue writeRequestQueue = s.getWriteRequestQueue();


            if (!s.isWriteSuspended()) {
                if (writeRequestQueue.isEmpty(session)) {
                    // We can write directly the message
                    s.getProcessor().write(s, writeRequest);
                } else {
                    s.getWriteRequestQueue().offer(s, writeRequest);
                    s.getProcessor().flush(s);

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            }
        }
    }


    private boolean flush(NioSession session, long currentTime) throws Exception {
        final WriteRequestQueue writeRequestQueue = session.getWriteRequestQueue();
        final int maxWrittenBytes = session.getConfig().getMaxReadBufferSize()
                + (session.getConfig().getMaxReadBufferSize() >>> 1);


        int writtenBytes = 0;


        try {
            for (;;) {
                WriteRequest req = session.getCurrentWriteRequest();


                if (req == null) {
                    req = writeRequestQueue.poll(session);


                    if (req == null) {
                        setInterestedInWrite(session, false);
                        break;
                    }

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     * {@inheritDoc}
     */
    public void write(NioSession session, WriteRequest writeRequest) {
        // We will try to write the message directly
        long currentTime = System.currentTimeMillis();
        final WriteRequestQueue writeRequestQueue = session.getWriteRequestQueue();
        final int maxWrittenBytes = session.getConfig().getMaxReadBufferSize()
                + (session.getConfig().getMaxReadBufferSize() >>> 1);


        int writtenBytes = 0;


        // Deal with the special case of a Message marker (no bytes in the request)
        // We just have to return after having calle dthe messageSent event
        IoBuffer buf = (IoBuffer) writeRequest.getMessage();


        if (buf.remaining() == 0) {
            // Clear and fire event
            session.setCurrentWriteRequest(null);
            buf.reset();
            session.getFilterChain().fireMessageSent(writeRequest);
            return;
        }


        // Now, write the data
        try {
            for (;;) {
                if (writeRequest == null) {
                    writeRequest = writeRequestQueue.poll(session);


                    if (writeRequest == null) {
                        setInterestedInWrite(session, false);
                        break;
                    }

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            /**
             * {@inheritDoc}
             */
            public void write(IoSession session, WriteRequest writeRequest) {
                WriteRequestQueue writeRequestQueue = session.getWriteRequestQueue();


                writeRequestQueue.offer(session, writeRequest);


                if (!session.isWriteSuspended()) {
                    this.flush(session);
                }
            }

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        /**
         * {@inheritDoc}
         */
        public void write(SerialSessionImpl session, WriteRequest writeRequest) {
            WriteRequestQueue writeRequestQueue = session.getWriteRequestQueue();


            writeRequestQueue.offer(session, writeRequest);


            if (!session.isWriteSuspended()) {
                session.getProcessor().flush(session);
            }
        }

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     */
    public void write( S session, WriteRequest writeRequest )
    {
        // We will try to write the message directly
        long currentTime = System.currentTimeMillis();
        final WriteRequestQueue writeRequestQueue = session.getWriteRequestQueue();
        final int maxWrittenBytes = session.getConfig().getMaxReadBufferSize()
            + ( session.getConfig().getMaxReadBufferSize() >>> 1 );


        int writtenBytes = 0;


        // Deal with the special case of a Message marker (no bytes in the request)
        // We just have to return after having calle dthe messageSent event
        IoBuffer buf = ( IoBuffer ) writeRequest.getMessage();


        if ( buf.remaining() == 0 )
        {
            // Clear and fire event
            session.setCurrentWriteRequest( null );
            buf.reset();
            session.getFilterChain().fireMessageSent( writeRequest );
            return;
        }


        // Now, write the data
        try
        {
            for ( ;; )
            {
                if ( writeRequest == null )
                {
                    writeRequest = writeRequestQueue.poll( session );


                    if ( writeRequest == null )
                    {
                        setInterestedInWrite( session, false );
                        break;

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    }




    private boolean flush( S session, long currentTime ) throws Exception
    {
        final WriteRequestQueue writeRequestQueue = session.getWriteRequestQueue();
        final int maxWrittenBytes = session.getConfig().getMaxReadBufferSize()
            + ( session.getConfig().getMaxReadBufferSize() >>> 1 );


        int writtenBytes = 0;


        try
        {
            for ( ;; )
            {
                WriteRequest req = session.getCurrentWriteRequest();


                if ( req == null )
                {
                    req = writeRequestQueue.poll( session );


                    if ( req == null )
                    {
                        setInterestedInWrite( session, false );
                        break;

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    private boolean flush(T session, long currentTime) throws Exception {
        // Clear OP_WRITE
        setInterestedInWrite(session, false);


        final WriteRequestQueue writeRequestQueue = session.getWriteRequestQueue();
        final int maxWrittenBytes =
            session.getConfig().getMaxReadBufferSize() +
            (session.getConfig().getMaxReadBufferSize() >>> 1);


        int writtenBytes = 0;
        try {
            for (; ;) {
                WriteRequest req = session.getCurrentWriteRequest();
                if (req == null) {
                    req = writeRequestQueue.poll(session);
                    if (req == null) {
                        break;
                    }
                    session.setCurrentWriteRequest(req);
                }

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        }
        return false;
    }


    private void clearWriteRequestQueue(T session) {
        WriteRequestQueue writeRequestQueue = session.getWriteRequestQueue();
        WriteRequest req;


        List<WriteRequest> failedRequests = new ArrayList<WriteRequest>();


        if ((req = writeRequestQueue.poll(session)) != null) {
            Object m = req.getMessage();
            if (m instanceof IoBuffer) {
                IoBuffer buf = (IoBuffer) req.getMessage();


                // The first unwritten empty buffer must be
                // forwarded to the filter chain.
                if (buf.hasRemaining()) {
                    buf.reset();
                    failedRequests.add(req);
                } else {
                    session.getFilterChain().fireMessageSent(req);
                }
            } else {
                failedRequests.add(req);
            }


            // Discard others.
            while ((req = writeRequestQueue.poll(session)) != null) {
                failedRequests.add(req);
            }
        }


        // Create an exception and notify.

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        }


        final boolean hasFragmentation =
            session.getTransportMetadata().hasFragmentation();


        final WriteRequestQueue writeRequestQueue = session.getWriteRequestQueue();


        // Set limitation for the number of written bytes for read-write
        // fairness.  I used maxReadBufferSize * 3 / 2, which yields best
        // performance in my experience while not breaking fairness much.
        final int maxWrittenBytes = session.getConfig().getMaxReadBufferSize() +
                              (session.getConfig().getMaxReadBufferSize() >>> 1);
        int writtenBytes = 0;
        try {
            // Clear OP_WRITE
            setInterestedInWrite(session, false);
            do {
                // Check for pending writes.
                WriteRequest req = session.getCurrentWriteRequest();
                if (req == null) {
                    req = writeRequestQueue.poll(session);
                    if (req == null) {
                        break;
                    }
                    session.setCurrentWriteRequest(req);
                }

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